Add table for voice order of priority

Author: solarrezaei11

articles/ai-services/speech-service/includes/how-to/speech-synthesis/python.md

@@ -36,6 +36,15 @@ The voice that speaks is determined in order of priority as follows:
 - If both `SpeechSynthesisVoiceName` and `SpeechSynthesisLanguage` are set, the `SpeechSynthesisLanguage` setting is ignored. The voice that you specify by using `SpeechSynthesisVoiceName` speaks.
 - If the voice element is set by using [Speech Synthesis Markup Language (SSML)](../../../speech-synthesis-markup.md), the `SpeechSynthesisVoiceName` and `SpeechSynthesisLanguage` settings are ignored.
 
+In summary, the order of priority can be described as:
+
+| `SpeechSynthesisVoiceName` | `SpeechSynthesisLanguage` | SSML | Outcome |
+|:----------------------------:|:----------------------------:|:--------:|---------------------------------------------------------|
+| ✗ | ✗ | ✗ | Default voice for `en-US` speaks |
+| ✗ | ✔ | ✗ | Default voice for specified locale speaks. |
+| ✔ | ✔ | ✗ | The voice that you specify by using `SpeechSynthesisVoiceName` speaks. |
+| ✔| ✔ | ✔ | The voice that you specify by using SSML speaks. |
+
 ## Synthesize speech to a file
 
 Create a [SpeechSynthesizer](/python/api/azure-cognitiveservices-speech/azure.cognitiveservices.speech.speechsynthesizer) object. This object runs text to speech conversions and outputs to speakers, files, or other output streams. `SpeechSynthesizer` accepts as parameters: